[X2go-dev] Suggestion: Make x2gothinclientsystem less invasive

[Moritz Struebe]

Hi.

We're working on it:
http://i4git.informatik.uni-erlangen.de/x2gothinclientsystem.git/tree/b0260af3bba3dad5dcbe593a57757554b67a2667:/x2gothinclient_helper

At the moment I'm busy with more general x2go stuff. But help is welcome.

Cheers
Morty

On 2011-03-25 11:15, Michael Hierweck wrote:
> Hi x2go folks,
>
> I would like to suggest a solution to make x2gothinclientsystem less
> invasive.
>
> Instead of mounting a ramdisk and removing/symlinking some files and
> directories (which might be a Debian packaging policy violation) it
> might be smarter to mount a read only root filesystem and transparently
> overlay it with a tempfs.
>
> I can this be achieved?
>
> a) Install aufs modules in the clients' chroot environment. Aufs modules
> are part of Squeeze's default kernel.
>
> b) Add "aufs" to /etc/initramfs-tools/modules.
>
> c) Set "BOOT=aufs" in /etc/initramfs-tools/initramfs.conf.
>
> d) Add a "magic" script (see attachment) named "aufs" to
> /etc/initramfs-tools/scripts
>
> e) Call update-initramfs -u inside the chroot.
>
> The "aufs" script is based on Debian's
> /usr/share/initramfs-tools/scripts/nfs script.
>
> The attached script provides a three layer file root filesystem.
>
> ro nfsroot/master (generic thinclients' chroot)
> ro nfsroot/<ip-address> (individual thinclient's configuration
> overriding master)
> rw tempfs (simulates a fully rw root file system)
>
> Pros:
>
> * simple (to my mind)
> * flexible
> * less "hacky" (less/no conflicts with other packages)
> * therefore more Debian compliant (to my mind)
> * x2go related stuff currently stored in /ramdisk can go into
> /var/lib/x2go...
>
> Cons:
>
> * any?
>
> Any feedback is appreciated.
>
> Michael
>
>
>
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-- 
Dipl.-Ing. Moritz 'Morty' Struebe (Wissenschaftlicher Mitarbeiter)
Lehrstuhl für Informatik 4 (Verteilte Systeme und Betriebssysteme)
Friedrich-Alexander-Universität Erlangen-Nürnberg
Martensstr. 1
91058 Erlangen

Tel   : +49 9131 85-25419
Fax   : +49 9131 85-28732
eMail : struebe at informatik.uni-erlangen.de
WWW   : http://www4.informatik.uni-erlangen.de/~morty



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